Leather



(No Model.) 2 Sheets-Sheet 1.

O. DANOEL.

MACHINE FOR SPLITTING LEATHER.

No. 244,196. Patented J111Y'12,l881.

N, PETERS. Phommhv ra lw, Walhingtom D4 6.

(No Model.) 2 Sheets-Sheet 2.

G. DANGEL. MACHINE FOR SPLITTING LEATHER.

No. 244,196. Patented July 12,1881. l r

$32, W Wxk '3 MM, :34

N. PEYERS, Pholvhlhngnpher. Washin mn. O 00 CHRISTIAN DANOYEL,

PATENT OFFICE.

OF NEW YORK, N. Y.

MACHINE FOR SPLITTING LEATH ER.

SPECIFICATION forming p art of Letters Patent No. 244,196, dated July12, 1881.

Application filed May 4,1881. (No model.)

' To all whom it may concern:

Be it known that I, CHRISTIAN DANOEL, a citizen of the United States,residing at'New York, in the county and State of New York,

' have invented new and useful Improvements in Machines for SplittingLeather and other Materials, of which the following is a specification.

This invention consists in the combination of a splitting-knife, a gage,and a feed-dog (one or more) the working-surface of which extends beyondthe cutting-edge of the knife and forms a support for the material afterthe same has been split; also, in the combination of a splitting-knife,a gage, a carriage containing two or more feed-dogs, and springs, onefor each feed-dog, to enable said feed-dogs to adapt themselves to theirregularities of the material to be split further, in certain mechanismfor allowing the feed-dog or feed-dogs to drop as the same recede, aswill be hereinafter more fully described.

This invention is illustrated in the accompanyin g drawings, in whichFigure 1 represents a longitudinal vertical section in the plane 00 a,Fig. 2. Fig. 2 is a transverse vertical section in the plane y y,Fig. 1. Fig. 3 is an inverted plan, partly in section.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates a platform which rests uponsuitable supports, B, and which is provided with guideways a a, in whichmoves the carriage 0. Near one end of this platform is secured thesplitting-knife D by two or more set-screws b, which pass through slotsin the knife, so that the cuttingedge of the knife can be adjusted inthe proper relation to the gage E. In the example shown in the drawingsthis gage consists of an L- shaped piece of cast-iron, which is securedby set-screws c c to a yoke, F, that rises from and is firmly secured tothe platform A. The setscrews 0 0 pass through slots d d, Fig. 2, and ascrew, 0, serves to raise or lower the gage, so as to accommodate thesame to the thickness of the material to be split. Instead of using aflat L-shaped gage, however, I can use a roller-gage or a gage of anysuitable form or shape.

The splitting-knife D which I have shown in the drawings is stationary,but said knife may be connected to a suitable mechanism for imparting tothe same a reciprocating motion during the operation of cutting, or aband- 1knife may be substituted for the stationary 'nife.

111 the front end of the carriage O is formed a recess for the receptionof the feed-dogs G, and a bar, H, which is screwed to the carriage,retains said feed-dogs in the recess. The working-surfaces of thefeed-dogs extend beyond the cutting-edge of the knife, and each of thefeed-dogs is exposed to the action 'of a separate spring, f, so that thesame accommodate themselves to the inequalities of the material to besplit. This arrangement is essential if my machine is used for splittinghides or leather which are not of uniform thickness throughout; but ifmy machine is used for splitting pasteboard or other materials ofuniform thickness, a single feed-dog may be used.

rod, h, that forms the fulcrum for a series of bell-crank levers, i j,one for each feed-dog. The long arms 45 of these bell-crank leversextend over the spring f, and they are pressed up againstfriction-rollers '70, secured in the shanks of the feed-dogs, while theshort arms j of said bell-crank levers are opposite to stops l, securedin the platform g in such a position that the feed-dogs cannot be forcedup far enough to come in contact with and injure the cutting-edge oftheknife.

The material to be split is placed upon the carriage O beneath the gageE, its forward end being supported by the feed-dogs G, which areprovided with serrated or toothed faces, and as the carriage begins tomove forward the serrated faces of the feed dogs G are pressed upagainst the under surface of the material, and are advanced by theforward movement of the table, thereby causing said dogs to force thematerial forward against the cutting-edge of the knife. During theoperation of splitting that portion of the material beneath the knife isstill supported by the feed-dogs, which carry the same forward andprevent it from becoming jammed, so that the splitting operation can becarried on without difliculty. When the carriage recedesthe feeddogs areallowed to drop, so as to clear'the material to be split.

The mechanism for moving the carriage consists of a crank, M, which isfirmly secured on the outer end of a revolving shaft, m, mounted in abox, at, which is secured to the platform A. On the inner end of thisshaft isnmounted a cam-disk, n, which carries an eccentric-pin, 0, thatconnects by a strap, p, with a pin or. rod, q, secured in the carriageO. The shaft is turned in the direction of the arrow, (marked near thecrank in Fig. 1,) and as it moves toward the position shown in Fig. 1the camdisk acts upon the lever 1 and the feed-dogs are forced up, whileat the same time the carriage is drawn forward, which forward movementefi'ects the advance motion of the feeddogs. As the motion of the shaftproceeds the cam-disk n releases the lever I, so that the bell-cranklevers t j, springs f, and platform 9 sink down, the springs fareprevented by the stops l from acting on the feed-dogs, and the feed-dogsdrop clear of the material while the carriage is moved back, and whenthe carriage has reached the back end of its stroke the cam-disk actsagain on the lever I, so that when the forward motion of the carriagecommences the material to be split is carried forward by the feed-dogs.

It is obvious that a'pulley may be substituted for the crank if it isdesired to drive my machine by mechanical power.

.before described, of the splitting-knife, the

gage, and'a series of feed-dogs each of which is. constructed to adaptitself to the surface of the material to be split independent of theremainin g feed-dogs.

3. The combination, substantially as hereinbefore described, of thesplitting-knife, the

gage, the carriage containing two or more feeddogs, and the springs, onefor each feed-dog.

4. The combination, substantially as hereinbefore described, of thesplitting-knife, the gage, the carriage containing a series of feeddogs,the spring or springs acting on the feed dog or dogs, the platformsupporting said spring or springs, the bell-crank levers i j, the stops1, the lever J, and the cam-disk n.

In testimony whereof I have hereunto set 'my hand and seal in thepresence of two subscribing witnesses.

OHRISTIANDANOEL. [L. s.]

Witnesses:

W. HAUFF,

E. F. KASTENHUBER.

